… AND ELECTRONIC INTERACTION STUDIES OF α-SUBSTITUTED CARBONYL COMPOUNDS. XIV. α-(ARYLSULFONYL)-p-SUBSTITUTED ACETOPHENONES [1]
PR Olivato, SA Guerrero, R Rittner
Index: Olivato, Paulo R.; Guerrero, Sandra A.; Rittner, Roberto Phosphorus, Sulfur and Silicon and Related Elements, 1997 , vol. 130, p. 155 - 174
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Citation Number: 12
Abstract
Abstract The νCO IR analysis of α-(p-phenylsulfonyl)-p-substituted acetophenones X-⊘ C (O) CH2S (O) 2⊘-Y 1–8, being X and Y= NO2, H and OMe substituents, supported by Molecular Mechanics data of the α-methylsulfonylacetophenone (model compound), indicates the existence of the cis/gauche rotational isomerism. The less polar gouche 2 rotamer is the more stable (conc.≅ 90%) and the more polar cis rotamer is the less stable ...
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